iPhoto Buddy - a great help for your iPhoto Libraries
I am mainly using Aperture but I do have and use iPhoto for various purposes and I want to put in a plug now for a great program that makes using iPhoto even easier than it is: iPhoto Buddy.
What iPhoto Buddy does is help you manage iPhoto Libraries and see the contents of them without evening opening them up. It has a number of features [details at the website]. It is a donationware application, which means it's free but a donation would be much appreciated [PayPal is fine] and I've provided $5 a few times over the years to recognize the creator's efforts and industry.